require 'faraday'

module Ably
  module Rest
    module Middleware
      # HTTP exceptions raised due to a status code error on a 3rd party site
      # Used by auth calls
      class ExternalExceptions < Faraday::Response::Middleware
        def on_complete(env)
          if env.status >= 400
            error_status_code = env.status
            message = "Error #{error_status_code}: #{(env.body || '')[0...200]}"

            if error_status_code >= 500
              raise Ably::Exceptions::ServerError, message
            else
              raise Ably::Exceptions::InvalidRequest, message
            end
          end
        end
      end
    end
  end
end